Fix return nil Rubocop offenses
Fix return nil Rubocop offenses

mmkassem/gitlabhq,stoplightio/gitlabhq,stoplightio/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq,iiet/iiet-git,mmkassem/gitlabhq,mmkassem/gitlabhq,iiet/iiet-git,mmkassem/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq